<template>
  <view class="goods-item">
    <!-- 商品左侧图片区域 -->
    <view class="goods-item-left">
      <radio :checked="goods.goods_state" @click="changeSta(goods)" color="#c00000" v-if="showRadio"></radio>
      <image :src="goods.goods_small_logo || defaultPic" class="goods-pic"></image>
    </view>
    <!-- 商品右侧信息区域 -->
    <view class="goods-item-right">
      <!-- 商品标题 -->
      <view class="goods-name">{{goods.goods_name}}</view>
      <view class="goods-info-box">
        <!-- 商品价格 -->
        <view class="goods-price">￥{{goods.goods_price | priceFormate}}</view>
        <!-- count -->
        <uni-number-box min="1" :value="goods.goods_count" v-if="showNum" @change="changeNum($event,goods.goods_count)"></uni-number-box>
      </view>
    </view>
  </view>
</template>

<script>
  import {mapMutations} from 'vuex'
  export default {
    name:"my-good",
    props:{
      goods:{
        type:Object,
        default:()=>({})
      },
      showRadio:{
        type:Boolean,
        default:false
      },
      showNum:{
        type:Boolean,
        default:false
      }
    },
    data() {
      return {
        // 默认的空图片
        defaultPic: 'https://img3.doubanio.com/f/movie/8dd0c794499fe925ae2ae89ee30cd225750457b4/pics/movie/celebrity-default-medium.png'
      };
    },
    computed:{
      info(){
          const that  = this
          const origin = this.goods
          return new Proxy(origin,{
            get(origin,key,proxy){
              if(key === 'goods_state') {
                if(typeof origin[key] === 'number') {
                  return origin[key] === 0 ? false : true
                }
              }
              return origin[key]
            },
            set(origin, key, value, proxy){
              const obj = origin
              obj[key] = value
              that.$emit("updata:goods",obj)
              return true
            }
          })
        }
    },
    methods:{
      ...mapMutations('cart',['changeState','changeNumber']),
      // 商品状态改变
      changeSta(data) {
        let {goods_state,goods_id} = data
        // 转换一下
        if(typeof goods_state === 'number') {
          goods_state = goods_state === 0 ? false :true
        }
        // 状态取反
        goods_state = !goods_state
        this.changeState({goods_state,goods_id})
      },
      // 商品数量改变
      changeNum(e,count){
        if(e === count) return
        const id = this.goods.goods_id
        // 更新数据
        this.changeNumber({id,count:e})
      }
    }
  }
</script>

<style lang="scss" scoped>
  .goods-item {
    display: flex;
    padding: 10px 5px;
    border-bottom: 1px solid #f0f0f0;
    background-color: #fff;
    .goods-item-left {
      margin-right: 5px;
      display: flex;
      justify-content: space-between;
      align-items: center;
      .goods-pic {
        width: 100px;
        height: 100px;
        display: block;
      }
    }
  
    .goods-item-right {
      display: flex;
      flex: 1;
      flex-direction: column;
      justify-content: space-between;
    
      .goods-name {
        font-size: 13px;
      }
    
      .goods-info-box {
        display: flex;
        align-items: center;
        justify-content: space-between;
      }
    
      .goods-price {
        font-size: 16px;
        color: #c00000;
      }
    }
  }
</style>